> I'm using ethereal 0.8.16 on Windows98.
>
> the install was successful.
>
> but I don't know what information I should enter for the "interface" field.
>
> The "interface" field is empty and there is no selectable field.
>
> I'm using 3Com EtherLink ( 3C905B-TX ).
http://www.ethereal.com/faq.html#q3.11
"Q 3.11: I have an XXX network card on my machine; it doesn't show up in
the list of interfaces in the "Interface:" field in the dialog box
popped up by "Capture->Start", and/or Ethereal gives me an error if I
try to capture on that interface.
A: Ethereal relies on the libpcap library, and on the facilities that
come with the OS on which it's running in order to do captures; on
Windows, it also relies on the device driver that comes with WinPcap
(which is a version of libpcap for Windows).
Therefore, if the OS, the libpcap library, or the WinPcap driver don't
support capturing on a particular network interface device, Ethereal
won't be able to capture on that device.
On Windows, note that, after installing the WinPcap driver, as per the
instructions on the WinPcap Web site, you must reboot the machine; don't
try to use Ethereal until you have installed the driver and rebooted the
machine.
...
If you are having trouble capturing on a particular network interface,
and you've made sure that (on platforms that require it) you've arranged
that packet capture support is present, as per the above, first try
capturing on that device with tcpdump - or, on Windows, the tcpdump port
to Windows, named WinDump; see the WinDump home page for information on
using WinDump.
...
If you cannot capture on the interface with tcpdump/WinDump, this is
almost certainly a problem with one or more of:
the operating system you're using;
the device driver for the interface you're using;
the libpcap/WinPcap library and, if this is Windows, the
WinPcap device driver;
so:
if you are using Windows, you should send a bug report to
winpcap@xxxxxxxxxxxxxxxxxxxxxxx after checking the WinPcap FAQ
to see if it discusses a problem with the networking device in
question;
..."